Microchip Technology PIC32A High-Performance 32-bit Microcontrollers

Microchip Technology PIC32A Microcontrollers (MCUs) feature a 200MHz 32-bit CPU and a 64-bit double-precision floating-point unit (DP-FPU) for math-intensive applications. These high-performance solutions are designed to significantly reduce the need for external components. The PIC32A series features integrated high-speed analog peripherals, up to 40Msps 12-bit ADCs, high-speed 5ns comparators, and 100MHz gain bandwidth product (GBWP) op-amps. Additionally, integrated hardware safety and security features are included, such as error code correction (ECC) on flash and RAM, memory built-in self-test (MBIST), I/O integrity monitor, clock monitoring, and immutable secure boot and flash access control. Microchip Technology PIC32A MCUs assist developers with the accelerated rollout of computationally intensive applications that need advanced performance in sensor interfacing and data processing.

Features

Peripheral
- Three 4-wire SPI modules
  - 4-bite FIFO
  - Variable data width
  - I²S mode
- Two I²C modules
  - Independent host and client logic
  - Supports 100kHz, 400kHz, and 1MHz bus specifications
  - 2-bit and 10-bit device addresses
  - Supports IPMI standard, SMBus, and PMBus
- Three protocol UARTs with 8-character RX/TX FIFOs
- Automated UART handling support
  - LIN 2.2
  - Digital multiplex 512 (DMX)
  - Smart card (ISO 7816)
  - IrDA
Analog
- Three 5ns analog comparators with 12-bit pulse density modulation DACs
  - Input multiplexing
  - Slope compensation
  - One DAC output buffer
- Three rail-to-rail 100MHz operational amplifier
  - 100V/μS slew rate
  - 1mV offset
  - User calibration of input offset votlage
- Four 10μA constant source + four programmable sources

Security module
- Secure boot
- Secure debug
- Immutable root of trust (IRT)
- Code protect
- ICSP program/erase disable
- Firmware IP protection
- Flash write protection
Safety
- Windowed watchdog timer (WDT)
- Deadman timer (DMT)
- Four I/O integrity monitors (IOIM)
- Flash ECC (NVM ECC)
- RAM ECC
- RAM MBIST
- Temperature sensor diode

Applications

Automotive
Industrial

Consumer
Medical

Specifications

High-performance 32-Bit CPU
- 32-bit wide data paths
- Single and DP-FPU coprocessor
- 2Kbyte instruction cache
- Sixteen 32-bit working registers
- Dual 72-bit accumulators supporting 32-bit and 16-bit fixed-point DSP operations
- Eight level deep working register contexts
- Eight level deep accumulator register contexts
- Eight level deep floating point register contexts
Controller
- High current sink/source capable I/Os
- Programmable weak pull-up and pull-down resistors
- Programmable open-drain outputs
- Edge of level change notification interrupt on I/O pins
- Peripheral pin select (PPS) remappable pins to reduce board layout complexity
- Multiple interrupt vectors with individual programmable priority
- Five external interrupt pins
- Selectable oscillator options
  - 8MHz, 1% at 0°C to +85°C internal fast oscillator
  - 8MHz, 2% internal backup fast RC oscillator with 32kHz divided output
  - High-speed crystal resonator oscillator or external clock
- Reference clock output
- Low-power modes
- Power-on reset and brown-out reset

Memory
- Up to 128Kbytes of program flash memory
  - 10,000 erase/write cycle endurance
  - 20 years minimum data retention
  - Self-programmable under software control
  - Programmable code protection
  - Flash ECC
  - Programmable OTP regions
  - Entire flash OTP by ICSP write inhibit
  - 64 x 128-bit OTP area
- Up to 16Kbytes of RAM
  - 6-channel hardware direct memory access (DMA) module
  - RAM ECC
  - RAM MBIST
High-speed PWM
- Four PWM generators
- Up to 2.5ns PWM resolution
- Dead time for rising and falling edges
- Dead-time compensation supports lower-speed operation
- BLDC, PMSM, ACIM, SRM, and stepper motor PWM support